Migrated setup.py -> pyproject.toml with Hatchling

Most of the changes to `pyproject.toml` were made by running
`hatch new --init` (see
https://hatch.pypa.io/latest/intro/#existing-project).
Most of the changes to the other files were based on the changes made in
django-commons/django-debug-toolbar#1690.

### `release.yml`:
* `hatch version` is run instead of `hatchling version` (as is done in
  the PR mentioned above), as the latter crashes with the error:
  ```
  hatchling.plugin.exceptions.UnknownPluginError: Unknown version source: vcs
  ```
  Installing `hatch` takes considerably longer than just `hatchling`,
  but I think it's still acceptable.
* Updated the `pypa/gh-action-pypi-publish` action from the sunset
  `master` branch to `release/v1`; see warning at
  https://github.com/jazzband/django-simple-history/actions/runs/9246937361.
  Also replaced the deprecated `repository_url` with `repository-url`; see
  https://github.com/pypa/gh-action-pypi-publish/blob/v1.8.14/action.yml#L15
### `.pre-commit-config.yaml`:
* Added some pre-commit hooks for formatting and validating
  `pyproject.toml`
### `MANIFEST.in`:
* Removed `MANIFEST.in`, as the default
  `[tool.hatch.build.targets.sdist]` configuration (in `pyproject.toml`)
  includes all files not ignored through our `.gitignore`; see
  https://hatch.pypa.io/latest/plugins/builder/sdist/#default-file-selection
### `pyproject.toml`:
* Didn't include the `license` field, as the docs recommend using a
  `License ::` classifier instead - see
  https://packaging.python.org/en/latest/guides/writing-pyproject-toml/#license
* The classifier "Programming Language :: Python :: 3"
  was changed to "Programming Language :: Python :: 3 :: Only"
  by the `pyproject-fmt` pre-commit hook
* Set `core-metadata-version = "2.2"` (copied from
  django-commons/django-debug-toolbar#1916) due to
  jazzband/help#360
* Didn't include the last 3 packages from the `packages` kwarg in
  `setup.py` when configuring `[tool.hatch.build.targets.wheel]`, since
  they don't make any difference in the generated wheel, as having just
  `simple_history` will include all its subpackages
* As part of porting long_description's file concatenation from
  `setup.py`, `hatch-fancy-pypi-readme` was added to `requires` and
  configured to concatenate the same files - except with the first title
  of `README.rst` and the "Unreleased" section of `CHANGES.rst` removed
  (facilitated by the added "Start of PyPI readme" comments in those two
  files)

.github/workflows/release.yml

@@ -24,18 +24,18 @@ jobs:
       - name: Install dependencies
         run: |
           python -m pip install -U pip
-          python -m pip install -U setuptools twine wheel
+          python -m pip install -U hatch build twine
 
       - name: Build package
         run: |
-          python setup.py --version
-          python setup.py sdist --format=gztar bdist_wheel
+          hatch version
+          python -m build
           twine check dist/*
 
       - name: Upload packages to Jazzband
         if: github.event_name == 'push' && startsWith(github.ref, 'refs/tags')
-        uses: pypa/gh-action-pypi-publish@master
+        uses: pypa/gh-action-pypi-publish@release/v1
         with:
           user: jazzband
           password: ${{ secrets.JAZZBAND_RELEASE_KEY }}
-          repository_url: https://jazzband.co/projects/django-simple-history/upload
+          repository-url: https://jazzband.co/projects/django-simple-history/upload

.github/workflows/test.yml

@@ -65,7 +65,7 @@ jobs:
           python-version: ${{ matrix.python-version }}
           cache: 'pip'
           cache-dependency-path: |
-            setup.py
+            pyproject.toml
             tox.ini
             requirements/*.txt
 

.pre-commit-config.yaml

@@ -35,9 +35,19 @@ repos:
       - id: check-docstring-first
       - id: check-executables-have-shebangs
       - id: check-merge-conflict
+      - id: check-toml
       - id: debug-statements
       - id: detect-private-key
 
+  - repo: https://github.com/tox-dev/pyproject-fmt
+    rev: 2.1.3
+    hooks:
+      - id: pyproject-fmt
+  - repo: https://github.com/abravalheri/validate-pyproject
+    rev: v0.18
+    hooks:
+      - id: validate-pyproject
+
   - repo: https://github.com/adrienverge/yamllint
     rev: v1.35.1
     hooks:

CHANGES.rst

@@ -7,6 +7,11 @@ Unreleased
 - Dropped support for Django 3.2, which reached end-of-life on 2024-04-01 (gh-1344)
 - Removed the temporary requirement on ``asgiref>=3.6`` added in 3.5.0,
   now that the minimum required Django version is 4.2 (gh-1344)
+- Migrated package building from using the deprecated ``setup.py`` to using
+  ``pyproject.toml`` (with Hatchling as build backend);
+  ``setup.py`` has consequently been removed (gh-1348)
+
+.. Start of PyPI readme
 
 3.6.0 (2024-05-26)
 ------------------

README.rst

@@ -1,6 +1,8 @@
 django-simple-history |pypi-version|
 ====================================
 
+.. Start of PyPI readme
+
 |jazzband| |build-status| |docs| |coverage| |maintainability| |code-style| |downloads|
 
 .. |pypi-version| image:: https://img.shields.io/pypi/v/django-simple-history.svg

pyproject.toml

@@ -1,6 +1,83 @@
+[build-system]
+build-backend = "hatchling.build"
+requires = [
+  "hatch-fancy-pypi-readme",
+  "hatch-vcs",
+  "hatchling",
+]
+
+[project]
+name = "django-simple-history"
+description = "Store model history and view/revert changes from admin site."
+maintainers = [
+  { name = "Trey Hunner" },
+]
+authors = [
+  { name = "Corey Bertram", email = "corey@qr7.com" },
+]
+requires-python = ">=3.8"
+classifiers = [
+  "Development Status :: 5 - Production/Stable",
+  "Environment :: Web Environment",
+  "Framework :: Django",
+  "Framework :: Django :: 4.2",
+  "Framework :: Django :: 5.0",
+  "Intended Audience :: Developers",
+  "License :: OSI Approved :: BSD License",
+  "Programming Language :: Python",
+  "Programming Language :: Python :: 3 :: Only",
+  "Programming Language :: Python :: 3.8",
+  "Programming Language :: Python :: 3.9",
+  "Programming Language :: Python :: 3.10",
+  "Programming Language :: Python :: 3.11",
+  "Programming Language :: Python :: 3.12",
+  # DEV: uncomment this when the `pyproject-fmt` pre-commit hook stops removing it
+  #"Programming Language :: Python :: 3.13",
+]
+dynamic = [
+  "readme",
+  "version",
+]
+dependencies = [
+]
+urls.Changelog = "https://github.com/jazzband/django-simple-history/blob/master/CHANGES.rst"
+urls.Documentation = "https://django-simple-history.readthedocs.io/en/stable/"
+urls.Homepage = "https://github.com/jazzband/django-simple-history"
+urls.Source = "https://github.com/jazzband/django-simple-history"
+urls.Tracker = "https://github.com/jazzband/django-simple-history/issues"
+
+[tool.hatch.version]
+source = "vcs"
+fallback-version = "0.0.0"
+
+[tool.hatch.version.raw-options]
+version_scheme = "no-guess-dev"
+local_scheme = "node-and-date"
+
+[tool.hatch.build.targets.wheel]
+# Jazzband's release process is limited to 2.2 metadata
+core-metadata-version = "2.2"
+packages = [
+  "simple_history",
+]
+
+[tool.hatch.build.targets.sdist]
+# Jazzband's release process is limited to 2.2 metadata
+core-metadata-version = "2.2"
+
+[tool.hatch.metadata.hooks.fancy-pypi-readme]
+content-type = "text/x-rst"
+fragments = [
+  { path = "README.rst", start-after = ".. Start of PyPI readme\n\n" },
+  { text = "\n====\n\nChangelog\n=========\n\n" },
+  { path = "CHANGES.rst", start-after = ".. Start of PyPI readme\n\n" },
+]
+
 [tool.black]
 line-length = 88
-target-version = ["py38"]
+target-version = [
+  "py38",
+]
 
 [tool.isort]
 profile = "black"
@@ -9,12 +86,19 @@ py_version = "38"
 [tool.coverage.run]
 parallel = true
 branch = true
-source = ["simple_history"]
+source = [
+  "simple_history",
+]
 
 [tool.coverage.paths]
-source = ["simple_history", ".tox/*/site-packages"]
+source = [
+  "simple_history",
+  ".tox/*/site-packages",
+]
 
 [tool.coverage.report]
 show_missing = true
 skip_covered = true
-omit = ["requirements/*"]
+omit = [
+  "requirements/*",
+]

tox.ini

@@ -50,8 +50,8 @@ commands =
 [testenv:format]
 deps = -rrequirements/lint.txt
 commands =
-    isort docs simple_history runtests.py setup.py
-    black docs simple_history runtests.py setup.py
+    isort docs simple_history runtests.py
+    black docs simple_history runtests.py
     flake8 simple_history
 
 [testenv:lint]